.ui-topbar { position: relative; display: block; width: 100%; height: 100%; min-height: 0; overflow: hidden; container-type: inline-size; background: var(--ui-bg); color: var(--ui-fg); font: 15px/1.5 var(--ui-font); --ui-topbar-h: 56px; }
.ui-topbar-bar {
  position: absolute; inset: 0 0 auto; z-index: 2; display: flex; align-items: center; gap: 4px; box-sizing: border-box; height: calc(var(--ui-topbar-h) + env(safe-area-inset-top));
  padding: env(safe-area-inset-top) max(4px, env(safe-area-inset-right)) 0 max(4px, env(safe-area-inset-left)); background: var(--ui-bg);
  transition: transform .2s cubic-bezier(.2, .8, .2, 1), background-color .2s, box-shadow .2s;
}
.ui-topbar-hidden { transform: translate3d(0, -100%, 0); }
.ui-topbar-tinted { background: color-mix(in srgb, var(--ui-accent) 10%, var(--ui-surface)); box-shadow: 0 1px 0 var(--ui-border); }
.ui-topbar-title { flex: 1; min-width: 0; margin: 0 0 0 8px; overflow: hidden; font-size: 20px; font-weight: 500; line-height: 1.3; text-overflow: ellipsis; white-space: nowrap; }
.ui-topbar-nav, .ui-topbar-actions button {
  display: inline-grid; flex: none; place-items: center; min-width: 44px; min-height: 44px; padding: 0; border: 0; border-radius: 50%;
  background: transparent; color: inherit; font: inherit; cursor: pointer;
}
.ui-topbar-nav svg, .ui-topbar-actions svg { width: 24px; height: 24px; }
.ui-topbar-nav:focus-visible, .ui-topbar-actions button:focus-visible { outline: none; box-shadow: var(--ui-focus); }
@media (hover: hover) { .ui-topbar-nav:hover, .ui-topbar-actions button:hover { background: var(--ui-subtle); } }
.ui-topbar-actions { display: flex; flex: none; align-items: center; }
.ui-topbar-scroll {
  box-sizing: border-box; height: 100%; padding-top: calc(var(--ui-topbar-h) + env(safe-area-inset-top)); overflow: auto; overscroll-behavior: contain; outline: none;
}
.ui-topbar-scroll:focus-visible { box-shadow: inset var(--ui-focus); }
@container (min-width: 600px) { .ui-topbar-bar, .ui-topbar-scroll { --ui-topbar-h: 64px; } .ui-topbar-bar { padding-inline: 12px; } .ui-topbar-title { font-size: 22px; } }
/* After the wider pane's: a phone on its side is wide, and short. */
@media (max-height: 430px) { .ui-topbar-bar, .ui-topbar-scroll { --ui-topbar-h: 48px; } }
@media (prefers-reduced-motion: reduce) { .ui-topbar-bar { transition: none; } }


.ui-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  height: 38px; padding: 0 16px; border: 1px solid transparent; border-radius: var(--ui-radius-sm);
  font: 500 14px/1 var(--ui-font); text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: background .15s, border-color .15s, color .15s, box-shadow .15s;
  --b: var(--ui-accent); --bf: var(--ui-accent-fg); --bs: var(--ui-accent-soft);
}
.ui-btn:focus-visible { outline: none; box-shadow: var(--ui-focus); }
.ui-btn[disabled], .ui-btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; pointer-events: none; }
.ui-btn-neutral { --b: var(--ui-fg); --bf: var(--ui-bg); --bs: var(--ui-subtle); }
.ui-btn-danger { --b: var(--ui-danger); --bf: #fff; --bs: var(--ui-danger-soft); }
.ui-btn-solid { background: var(--b); color: var(--bf); }
.ui-btn-solid:hover { background: color-mix(in srgb, var(--b) 88%, var(--ui-fg)); }
.ui-btn-soft { background: var(--bs); color: var(--b); }
.ui-btn-soft:hover { background: color-mix(in srgb, var(--bs) 80%, var(--b)); }
.ui-btn-outline { background: transparent; color: var(--b); border-color: var(--ui-border); }
.ui-btn-outline:hover { border-color: var(--b); background: var(--bs); }
.ui-btn-ghost { background: transparent; color: var(--b); }
.ui-btn-ghost:hover { background: var(--bs); }
.ui-btn-sm { height: 30px; padding: 0 11px; font-size: 13px; }
.ui-btn-lg { height: 46px; padding: 0 22px; font-size: 16px; }
.ui-btn-full { display: flex; width: 100%; }
.ui-btn-spin { width: 1em; height: 1em; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: ui-btn-spin .7s linear infinite; }
@keyframes ui-btn-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .ui-btn-spin { animation-duration: 2s; } }